122110220321 has 4 divisors (see below), whose sum is σ = 122118586644. Its totient is φ = 122101854000.

The previous prime is 122110220311. The next prime is 122110220327. The reversal of 122110220321 is 123022011221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 438316096 + 121671904225 = 20936^2 + 348815^2 .

It is a cyclic number.

It is not a de Polignac number, because 122110220321 - 2²² = 122106026017 is a prime.

It is a super-2 number, since 2×122110220321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 122110220321.

It is not an unprimeable number, because it can be changed into a prime (122110220327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4161230 + ... + 4190471.

It is an arithmetic number, because the mean of its divisors is an integer number (30529646661).

Almost surely, 2^122110220321 is an apocalyptic number.

It is an amenable number.

122110220321 is a deficient number, since it is larger than the sum of its proper divisors (8366323).

122110220321 is an equidigital number, since it uses as much as digits as its factorization.

122110220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8366322.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 122110220321 its reverse (123022011221), we get a palindrome (245132231542).

The spelling of 122110220321 in words is "one hundred twenty-two billion, one hundred ten million, two hundred twenty thousand, three hundred twenty-one".